A diesel engine works at a high compression ratio to compress air until it reaches a temperature high enough to ignite the diesel fuel. Suppose the compression ratio (ratio of volumes) of a specific diesel engine is 21 to 1. If air enters a cylinder at 1 atm and is compressed adiabatically, the compressed air reaches a pressure of 71 atm. Assuming that the air enters the engine at room temperature (25.0 °C) and that the air can be treated as an ideal gas, find the temperature of the compressed air.